Installing neurodocker from its docker image doesn't work

Hi All,
I used docker run --rm repronim/neurodocker:0.7.0 to install neurodocker. Successfully pulled. However, everytime I run neurodocker generate docker \..., it tells me neurodocker: command not found
I am able to install neurodocker throught conda+pip and it works fine.
Just want to report this issue with installing neurodocker through docker in case you may want to update the docker image.
Thanks
Yibei